<template>
    <div>
<!--      面包导航-->
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
      </el-breadcrumb>
<!--      卡片视图区域-->
      <el-card>
<!--        搜索与添加区域-->
        <el-row :gutter="20">
          <el-col :span="9">
            <el-input clearable @clear="getUserList" placeholder="请输入内容" v-model="queryInfo.query">
              <el-button @click="getUserList" slot="append" icon="el-icon-search"></el-button>
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button @click="addDialogVisible = true" type="primary">添加用户</el-button>
          </el-col>
        </el-row>
<!--        用户列表区域-->
<!--        data绑定数据源-->
        <el-table :data="userlist" border stripe>
<!--          索引列-->
          <el-table-column type="index"></el-table-column>
          <el-table-column label="姓名" prop="username"></el-table-column>
          <el-table-column label="邮箱" prop="email"></el-table-column>
          <el-table-column label="电话" prop="mobile"></el-table-column>
          <el-table-column label="角色" prop="role_name"></el-table-column>
          <el-table-column label="状态">
<!--            作用域插槽-->
            <template slot-scope="scope">
<!--              {{scope.row}}-->
<!--              {{scope.row.mg_state}}-->
              <el-switch @change="userStateChanged(scope.row)" v-model="scope.row.mg_state"></el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="180px">
            <template slot-scope="scope">
<!--              {{scope.row}}-->
<!--              修改按钮-->
              <el-button @click="showEditDialog(scope.row.id)" size="mini" type="primary" icon="el-icon-edit"></el-button>
<!--              删除按钮-->
              <el-button @click="removeUserById(scope.row.id)" size="mini" type="danger" icon="el-icon-delete"></el-button>
<!--              分配角色按钮-->
              <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                <el-button @click="setRole(scope.row)" size="mini" type="warning" icon="el-icon-setting"></el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
      </el-card>
<!--      用户列表区域-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>

<!--      添加用户对话框-->
      <el-dialog
        title="提示"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed">
<!--        内容主体区域-->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
<!--        底部区域-->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

<!--      修改用户对话框-->
      <el-dialog
            title="修改用户"
            :visible.sync="editDialogVisible"
            width="50%"
      @close="editDialogClosed">
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机号" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>
<!--      分配角色对话框-->
      <el-dialog
              title="分配角色"
              :visible.sync="setRoleDialogVisible"
              width="50%"
              @close="setRoleDialogClosed">
              <div>
                <p>当前用户：{{userInfo.username}}</p>
                <p>当前角色：{{userInfo.role_name}}</p>
                <p>
                  分配新角色：
                  <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option
                      v-for="item in rolesList"
                      :key="item.id"
                      :label="item.roleName"
                      :value="item.id">
                    </el-option>
                  </el-select>
                </p>
              </div>
              <span slot="footer" class="dialog-footer">
          <el-button @click="setRoleDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
    </div>
</template>

<script>
export default {
  name: 'Users',
  data () {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取用户列表参数对象
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 每页显示多少条数据
        pagesize: 2
      },
      userlist: [],
      total: 0,
      // 添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名长度在3-10个字符串', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 10, message: '密码长度在6-15个字符串', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 修改用户对话框显示隐藏
      editDialogVisible: false,
      // 查询到的用户id
      editForm: {},
      // 修改表单验证规则
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入用户手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制分配角色对话框显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 已选中的roleid值
      selectedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    // 获取用户数据
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      // console.log(res)
      if (res.meta.status !== 200) return this.$message.error('获取列表失败')
      this.userlist = res.data.users
      this.total = res.data.total
    },
    handleSizeChange (newSize) {
      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    handleCurrentChange (newPage) {
      console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch状态改变
    async userStateChanged (userinfo) {
      // console.log(userinfo)
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听对话框关闭
    addDialogClosed () {
      // 表单重置
      this.$refs.addFormRef.resetFields()
    },
    // 添加新用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return this.$message.error('请填写完整用户信息')
        // 验证通过
        const { data: res } = await this.$http.post('users', this.addForm)
        console.log(res)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！！！')
        }
        this.$message.success('添加用户成功！！！')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
        // 重新获取数据
        this.getUserList()
      })
    },
    // 展示编辑用户对话框
    async showEditDialog (id) {
      // console.log(id)
      const { data: res } = await this.$http.get(`users/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听编辑用户关闭事件
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo () {
      this.$refs.editFormRef.validate(async vaild => {
        // console.log(vaild)
        if (!vaild) return false
        // 修改用户信息
        // console.log(this.editForm.id)
        const { data: res } = await this.$http.put(`users/${this.editForm.id}`, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        // console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示修改成功
        this.$message.success('更新用户信息成功')
      })
    },
    // 根据id删除用户信息
    async removeUserById (id) {
      // console.log(id)
      // 询问用户是否删除
      const confirmRes = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
        // 捕获错误消息
      }).catch(err => err)
      // 如果用户确认删除 返回字符串 confirm
      // 如果用户取消删除 返回字符串 cancel
      // console.log(confirmRes)
      if (confirmRes !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      // console.log('确认删除')
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    // 展示分配角色对话框
    async setRole (userInfo) {
      // 分配角色的用户信息
      this.userInfo = userInfo
      // 获取所有角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.rolesList = res.data
      console.log(this.rolesList)
      this.$message.success('获取角色列表成功')
      // 展示对话框
      this.setRoleDialogVisible = true
    },
    // 点击按钮分配角色
    async saveRoleInfo () {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`,
        { rid: this.selectedRoleId })
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败！！')
      }
      this.$message.success('更新角色成功！！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style scoped lang="less">

</style>
